FR2762167B1 - Sondage a ponderation spatiale d'une voie de transmission - Google Patents

Sondage a ponderation spatiale d'une voie de transmission

Info

Publication number
FR2762167B1
FR2762167B1 FR9704653A FR9704653A FR2762167B1 FR 2762167 B1 FR2762167 B1 FR 2762167B1 FR 9704653 A FR9704653 A FR 9704653A FR 9704653 A FR9704653 A FR 9704653A FR 2762167 B1 FR2762167 B1 FR 2762167B1
Authority
FR
France
Prior art keywords
survey
transmission channel
spatial weighting
weighting
spatial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9704653A
Other languages
English (en)
Other versions
FR2762167A1 (fr
Inventor
Jean Louis Dornstetter
Rached Nidham Ben
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks SA
Original Assignee
Nortel Matra Cellular SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR9704653A priority Critical patent/FR2762167B1/fr
Application filed by Nortel Matra Cellular SCA filed Critical Nortel Matra Cellular SCA
Priority to CA002286555A priority patent/CA2286555A1/fr
Priority to US09/402,955 priority patent/US6904107B1/en
Priority to EP98920612A priority patent/EP0983640A1/fr
Priority to CN98805138.9A priority patent/CN1256815A/zh
Priority to BR9808550-6A priority patent/BR9808550A/pt
Priority to PCT/FR1998/000735 priority patent/WO1998047240A1/fr
Publication of FR2762167A1 publication Critical patent/FR2762167A1/fr
Application granted granted Critical
Publication of FR2762167B1 publication Critical patent/FR2762167B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
FR9704653A 1997-04-14 1997-04-14 Sondage a ponderation spatiale d'une voie de transmission Expired - Fee Related FR2762167B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9704653A FR2762167B1 (fr) 1997-04-14 1997-04-14 Sondage a ponderation spatiale d'une voie de transmission
US09/402,955 US6904107B1 (en) 1997-04-14 1998-04-10 Space-weighted communication path estimation
EP98920612A EP0983640A1 (fr) 1997-04-14 1998-04-10 Sondage a ponderation spatiale d'une voie de transmission
CN98805138.9A CN1256815A (zh) 1997-04-14 1998-04-10 传输线路的空间均衡探测
CA002286555A CA2286555A1 (fr) 1997-04-14 1998-04-10 Sondage a ponderation spatiale d'une voie de transmission
BR9808550-6A BR9808550A (pt) 1997-04-14 1998-04-10 Sondagem com ponderação espacial de uma via de transmissão
PCT/FR1998/000735 WO1998047240A1 (fr) 1997-04-14 1998-04-10 Sondage a ponderation spatiale d'une voie de transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9704653A FR2762167B1 (fr) 1997-04-14 1997-04-14 Sondage a ponderation spatiale d'une voie de transmission

Publications (2)

Publication Number Publication Date
FR2762167A1 FR2762167A1 (fr) 1998-10-16
FR2762167B1 true FR2762167B1 (fr) 1999-09-24

Family

ID=9505951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9704653A Expired - Fee Related FR2762167B1 (fr) 1997-04-14 1997-04-14 Sondage a ponderation spatiale d'une voie de transmission

Country Status (7)

Country Link
US (1) US6904107B1 (fr)
EP (1) EP0983640A1 (fr)
CN (1) CN1256815A (fr)
BR (1) BR9808550A (fr)
CA (1) CA2286555A1 (fr)
FR (1) FR2762167B1 (fr)
WO (1) WO1998047240A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7058147B2 (en) * 2001-02-28 2006-06-06 At&T Corp. Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems
FR2823620B1 (fr) * 2001-04-12 2003-08-15 France Telecom Procede de codage/decodage d'un flux de donnees numeriques codees avec entrelacement sur bits en emission et en reception multiple en presence d'interference intersymboles et systeme correspondant
US7130355B1 (en) * 2001-07-25 2006-10-31 At&T Corp. Amelioration in inter-carrier interference in OFDM
US7346126B2 (en) 2001-11-28 2008-03-18 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for channel estimation using plural channels
KR100615889B1 (ko) * 2001-12-29 2006-08-25 삼성전자주식회사 송/수신 다중 안테나를 포함하는 이동 통신 장치 및 방법
US7065166B2 (en) * 2002-12-19 2006-06-20 Texas Instruments Incorporated Wireless receiver and method for determining a representation of noise level of a signal
CN1203637C (zh) * 2003-01-07 2005-05-25 大唐移动通信设备有限公司 时隙cdma系统噪声空间相关特性估计方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432816A (en) * 1992-04-10 1995-07-11 International Business Machines Corporation System and method of robust sequence estimation in the presence of channel mismatch conditions
FR2696604B1 (fr) * 1992-10-07 1994-11-04 Alcatel Radiotelephone Dispositif d'estimation d'un canal de transmission.
FR2716761B1 (fr) * 1994-02-25 1996-03-22 Thomson Csf Procédé permettant une égalisation multivoie dans un récepteur radioélectrique en présence d'interférences et de multitrajets de propagation.
US5761088A (en) * 1995-12-18 1998-06-02 Philips Electronics North America Corporation Method and apparatus for channel identification using incomplete or noisy information
US6097770A (en) * 1996-10-31 2000-08-01 Lucent Technologies Inc. Frequency offset estimation for wireless systems based on channel impulse response
US5917851A (en) * 1996-12-30 1999-06-29 Nokia Telecommunications Oy Method for allocating rake branches and rake receiver

Also Published As

Publication number Publication date
CA2286555A1 (fr) 1998-10-22
US6904107B1 (en) 2005-06-07
BR9808550A (pt) 2000-10-24
WO1998047240A1 (fr) 1998-10-22
EP0983640A1 (fr) 2000-03-08
CN1256815A (zh) 2000-06-14
FR2762167A1 (fr) 1998-10-16

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Legal Events

Date Code Title Description
ST Notification of lapse
RN Application for restoration
CD Change of name or company name
TP Transmission of property
IC Decision of the director general to declare irreceivable or to reject an appeal